| Index: gcc/gmp/mpn/cray/add_n.c
|
| diff --git a/gcc/gmp/mpn/cray/add_n.c b/gcc/gmp/mpn/cray/add_n.c
|
| deleted file mode 100644
|
| index e4f8a0da9b08fbd160171f6d88a494c3b2dc288b..0000000000000000000000000000000000000000
|
| --- a/gcc/gmp/mpn/cray/add_n.c
|
| +++ /dev/null
|
| @@ -1,80 +0,0 @@
|
| -/* Cray PVP mpn_add_n -- add two limb vectors and store their sum in a third
|
| - limb vector.
|
| -
|
| -Copyright 1996, 2000, 2001 Free Software Foundation, Inc.
|
| -
|
| -This file is part of the GNU MP Library.
|
| -
|
| -The GNU MP Library is free software; you can redistribute it and/or modify
|
| -it under the terms of the GNU Lesser General Public License as published by
|
| -the Free Software Foundation; either version 3 of the License, or (at your
|
| -option) any later version.
|
| -
|
| -The GNU MP Library is distributed in the hope that it will be useful, but
|
| -WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
| -or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
| -License for more details.
|
| -
|
| -You should have received a copy of the GNU Lesser General Public License
|
| -along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
|
| -
|
| -/* This code runs at 4 cycles/limb. It may be possible to bring it down
|
| - to 3 cycles/limb. */
|
| -
|
| -#include "gmp.h"
|
| -#include "gmp-impl.h"
|
| -
|
| -mp_limb_t
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| -mpn_add_n (mp_ptr rp, mp_srcptr up, mp_srcptr vp, mp_size_t n)
|
| -{
|
| - mp_limb_t cy[n];
|
| - mp_limb_t a, b, r, s0, c0, c1;
|
| - mp_size_t i;
|
| - int more_carries;
|
| -
|
| - /* Main add loop. Generate a raw output sum in rp[] and a carry vector
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| - in cy[]. */
|
| -#pragma _CRI ivdep
|
| - for (i = 0; i < n; i++)
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| - {
|
| - a = up[i];
|
| - b = vp[i];
|
| - s0 = a + b;
|
| - rp[i] = s0;
|
| - c0 = ((a & b) | ((a | b) & ~s0)) >> 63;
|
| - cy[i] = c0;
|
| - }
|
| - /* Carry add loop. Add the carry vector cy[] to the raw sum rp[] and
|
| - store the new sum back to rp[0]. If this generates further carry, set
|
| - more_carries. */
|
| - more_carries = 0;
|
| -#pragma _CRI ivdep
|
| - for (i = 1; i < n; i++)
|
| - {
|
| - r = rp[i];
|
| - c0 = cy[i - 1];
|
| - s0 = r + c0;
|
| - rp[i] = s0;
|
| - c0 = (r & ~s0) >> 63;
|
| - more_carries += c0;
|
| - }
|
| - /* If that second loop generated carry, handle that in scalar loop. */
|
| - if (more_carries)
|
| - {
|
| - mp_limb_t cyrec = 0;
|
| - /* Look for places where rp[k] is zero and cy[k-1] is non-zero.
|
| - These are where we got a recurrency carry. */
|
| - for (i = 1; i < n; i++)
|
| - {
|
| - r = rp[i];
|
| - c0 = (r == 0 && cy[i - 1] != 0);
|
| - s0 = r + cyrec;
|
| - rp[i] = s0;
|
| - c1 = (r & ~s0) >> 63;
|
| - cyrec = c0 | c1;
|
| - }
|
| - return cyrec | cy[n - 1];
|
| - }
|
| -
|
| - return cy[n - 1];
|
| -}
|
|
|